hersey



(No'Model.) ,l @sheetssheen 1.

V R. .HERSET 'NAIL PLATE FEEDER. No. 854,980. Patentedne. 2,8, 1888'.-

j (N'o Model.) 6 Sheets-Sheet 2.

R. HERSEY.

NAIjL PLATE FEEDER.

10.854888 Patented 1368.28, 1888.

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(No Model.) 6 Sheets-vSheet 4.

rR. HERSEY. NAIL PLATE FEEDER.

No, 354,980. Patented Den. 28, 1886.'

(No Model.) 6 Sheets-Sheet 5.

R. HERSEY. NAIL PLATE FEEDER.

No. 354,980. Patented 1360.28, 1886..I

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WI/Zwaag.

.(No Model.) 6 Shets-Sheet 6.

R. HERSEY. NAIL PLATE FEEDER.

No. 854,980. Patented 1380.28, 1888.

RANDOLPH HERSEY, OF MONTREAL, QUEBEC, CANADA.

NAIL-PLATE FEEDER.

EPECIFICATION forming part of Letters Patent No. 354,980, dated December28, 1886.

Application filed October 11, 18S6. Serial No. 215,59. (No model.)

To all whom it may concern: Y

Beit known that 1, RANDOLPH HnRsEY, of the city of Montreal, in thedistrict of Montreal and Province of Quebec, Canada, have inventednewand useful lmprovementsin Nail- Plate Feeders; and I do herebydeclare that the following is a full, clear, and exact description ofthesame.

-This invention has reference to the construction and arrangement of amechanism for presenting the plate from which pieces are out by anail-cutting machine (or by a 1iail-blankcut ting machine) tothe cuttersof the said machine.

The mechanism forming my present invention is arranged to presentV thenail-plate to the cutters of the nail or nail-blank cutting machine atthe proper angle, after which it automatically draws back the plate andraises it, turns it over, lowers the plate, and again presentsitto thecutters ofthe nail-cutting or nailblank-cutting machine.

My invention also providesthat the feeding motion of the nail-plate willstop when the nail-plate has been cut down as close as may properly betothe nipper-rod ortongs by which it is held, and other features, whichwill be hereinafter set forth.

The particular combinations of features or elements which form mypresent invention will be hereinafter fully set forth and claimed.

In the drawings hereunto annexed similar letters of reference andnumeralsindicate like parts; i

Figure 1 isa side elevation of a machine embodying my invention, shownin connection with a diagram ofthe principal parts ofa nailcuttingmachine to which it is connected. Fig. 2vis a diagram showing themotions of some of the principal parts forming the mechanism embodyingmy invention, as shown in Fig. 1. Figi?, is aside elevation, part insection, 'showing the mechanism embodying my invention in the positionpresenting the nail-plate to the cutters ofthe nail-cutting machine.Fig. 4 is a plan of the mechapism shown in Fig. 3. Fig. 5 is alongitudinal section taken on line a: x, Fig. 4, showing also thenipperrod or tongs for holding the nail-plate, which are omitted in Fig.4. Fig. 6 is a Section on line y, Fig. 5. Fig. 7 is an inner sideelevation of the rackkthrough an elongated opening, p. '4.)

part being taken on line x x, Fig. 12. Figs.

14, 15, and 16 are details of construction and arrangement of spring andfollowers. Fig. 17 is a section on line mx, Fig. 13. Fig. 18 is a planofthe pawls by which the nipperrod or tongs are operated. Fig. 19 is aplan of the nipperrod or tongs. Figs. 20, 21, and 22 are modificationsof the cam formed on the front end of the lever i', Fig. 22 being asection on line x Fig. 20.

Letter a is the bed of an ordinary nail-cutting machine. b isthedriving-shaft; c, the cutting-jaw, carrying the moving cutter d. e isthe rest carrying the bed or stationary cutter f. (See Figs. 1 and 3.)All `these parts are arranged in the ordinary manner.

On the driving-shaft b is secured a pinion, g, intermeshing with agear-wheel, h, the pinion being half the diameter of the gear-wheel h,so that the wheel h will make but one revolution to two of the pinion g.To the wheel h is attached an adjustable pin, i, to which is attachedthe connecting-rod k, the lower end of which is attached to a lever, Z,carried in a bracket, m, attached on the under side of the frame a, thewhole being arranged so that the leverl will make one vibration to eachcut of the cutter d, which' cuts off pieces from the nail-plate.

v All the abovedescribed parts are arranged in a similar manner to thatwhich has been in use prior to my present invention.

To the under side of the frame c, and at the front end thereof, isattached a sub-frame, n. This is attached by two bolts, one. passingthrough a circular opening, o, and the other (See Fig. This is for thepurpose of enabling the necessary amount of adjustment of the angle atwhich the nail-plate is presented to the cutters, and gives the desiredwidth of point to Y Y pin s.

.rack h of the lever z".

the nail. The frame n, being pivoted on the bolt passing through theopening o, rotatesa small amount thereon that it is allowed by thelength of the opening p.

On the frame n is formed a bracket, q, made integral with the frame n,or attached separate, as desired. On the frame n is formed an ordinarybearing, o", carrying an ordinary rockshaft, s.

To the bracket q is pivoted, b y the pivot t, the arm u of a swingingframe, a'. At the rear or back end of the swinging frame is formed abearing, b', for holding a revolving cylinder, c. The rear end of thecylinder is provided with an ordinary nose-piece, d', similar to thoseat present in use in automatic mechanisms for presenting nail-plates tonail-cuttingr machines, and therefore need not be more particularlydescribed.

The front end of the cylinder c' is provided with beveled teeth e',forming it into a beveledl gear-wheel. These teeth e intermesh withsimilarly-beveled teeth j", formed on a segmental rack, L, madeintegral, preferably, with the lever t", pivoted on a double eye orbracket, 7c', formed on the swinging frame a by the pivot-pin Z. Thelever 'i extends beyond the pivot-pin Z', and on its front extremity isformed a segment, m', provided with a cam projection, n', which will behereinafter more particularly described.

At the front end of the lever Z is attached a pin, o', preferably in aslotted hole, for the purpose of allowing for adjustment. To the pin ois attached the lower end of a connectingrod, p. The upper end of theconnecting-rod p is attached to a pin, g', on the segmental By thisarrangement, as the lever Z is vibrated by the connectingrod k and pin ion the gear-wheel h the extent indicated by the dotted, solid, and chainlines 1 in the diagram Fig. 2, this causes the connecting-rod p to movethe extent indicated by the dotted, solid, and chain lines 2, causingthe lever t" to vibrate the extent indicated by the dotted, solid, andchain lines 3, from which it willbe understood how the lever t" isoperated.

` In the lever t" is secured in a slotopening, 1", a pin, s', therebyallowing for a certain amount of adjustment of the position of the Thepin s is connected by a'connecting-rod, t', to the pin u of an arm, n,of the rock-shaft 8.

On the under side of the swinging frame a is formed an eye, a2, to whichis connected by a pin, b2, the connecting-rod c2, the lower extremity ofthe connecting-rod c2 being attached to the pin di of the arm e2 of therock-shaft s. By this arrangement'the motion which is imparted to thelever i, as hereinbefore described, and the extent of which isrepresented by the lines 3, Fig. 2, causes the connectingrod t to movethe extent indicated by the lines 4, causing the arm 'v' of therock-shaft s to vibrate the amount indicated by the lines 5 and the arme2 to vibrate the amount indicated by the three lines 6. This causes theconnecting-rod c2 to move the extent indicated by the lines 7, causingthe frame a to swing upon the pivot t, the position of which isindicated in Fig. 2 by the point t, thereby moving the center line otthe frame a' and parts attached to or on it the extent that the line 8(which is also one of the lines 3) is from the line 9. From the positionof the pivot t the action ofthe arm e2 and connecting-rod c2 not onlycauses an oscillating motion up and down of the frame a', but alsocauses a backward and forward motion of the swinging frame a', which isindicated by the difference of position of the points 10 and 1l in Fig.2, whichl points represent the center of the pin l.

It will be observed that while the arm c2 is shown in threepositions,6,onlytwo positions, 12 and 13, of the pin b2 resulttherefrom, and the position of it caused by the action of the rock-shaftarm e2 and connecting-rod c2 upon the swinging frame a', because whenthe'rockshaft arm e2 is in the central position of the positions 6 thecenter of the pin b2 is raised and moved forward to' the position 12,while at the extremities of the movements of the rock-shaft arm e2 thepint2 is lowered and brought backward at both extremities of themovement to theposition 13, and so with every portion of the frame a andparts attached thereon. I wish to call particular attention to this lastabove-mentioned movement, because each time the center of the pinb2 isbrought to the position 13 the nail-plate is presented to the cutters(and a piece cut off to be formed into a nail) in the manner which willbe hereinafter described.

From the above description it will be understood that each time thelever l makes a complete vibration the cylinder c is caused by thesegmental rack hto make an exact half-revolution, bringing at eachextremity of said halfrevolution the nail-plate f2 to the position shownin Figs. 3 and 4, while at the midway position of the vibrations thenail-platef2 will be in the position indicated in Fig. 1. On the frontend of the swinging frame a is secured the rest gz by bolts h. The restg2 consists of a bed, i2, provided with a dovetailed recess, k2,suitable for receiving the slide Z. (Shown in Figs. 12 and 13 on asomewhat larger scale.) This bed t2 is madeintegral with a head, m2,provided with projections n, in which are formed recesses for holdingthe springs o2 and Vheads p?. The springs o, as shown, consist of rubbercushions. The in.- ner surfaces of the heads p2 project slightly intothe space q2 between the projections n2. This space is so arranged thatit'will be central with the center line of the cylinder c', and theheads p2 will be arranged to grip tightly between them such portionofthe body ofthe nipper-rod or tongs r2, situated between them, in themanner hereinafter mentioned.

s are cover-plates secured on the projections n for keeping the springso2 and heads p in place.

IIS

The slide Z2 consists of a plate dovetailed and recessed, as shown bythe cross-section given of it in Fig. 11 and by the longitudinal sectionin Fig. 17. (See also front elevation and 15 j ustmentof the screw e3the action or pressure of the spring (Z3 may be increased or diminished.

On the front portion of the slide Z2 a projection, g, is formed, inwhich is secured a pin,V

h3, encircled by a thimble or bush, is, which forms a roller to rollupon the periphery of the segment m and cam projection a', beingproperly situated for that purpose, as shown in Figs. l, 3, and 4, sothat as the lever Z is partially rotated on the pin Z the slide Z'L iscaused to travel back and forward at each vibration of the lever 1l theamount due to the amount of projection that 4the cam projection aextends beyond the remainder of the segment m', unless it is in a mannerprevented from so doing, as will be hereinafterdescribed.

On a projection, k3, of the upper surface of the slide Z2 are pivotedtwo pawls, Z"s and m3, one of which is a little shorter than the other.These are each actuated by a spring, n3, the springs being attached tothe sides of the projection 7c, the whole being arranged so that thepawls Zs and m3 press inward to grip upon serrated peripheral ringsformed on the body of the nipper-rod or tongs, in the mannerhereinafter'described. Y

o3 is a guideplate attached, as shown, on one side of the bearing b',receiving in a suitable groove formed in it the outer portiomps, of thesegmental rack h, for the purpose of guiding and rendering the lever Zperfectly steady transversely during its vibrations.

The nipper-rod or tongs consist of a pair of spring-jaws, qa, mounted ona rod, r". (See Figs. 5 and 19.) The force of the jaws g3, to nip thenail-platefz, is augmented by forming them slightly tapered andproviding them with a slip-collar, r3, to be used in the wellknownordinary way.

The rod r2 is provided with peripheral serrations s3 throughout a largeport-ion of its length, as shown, and with a collar, t3. (See Figs. 1,3, and 19.) The nipper-rod or tongs, with the nail-plate]c2 held by it,are placed in position as shown, the nail-platef2 being received withinthe cylinder c', and held and guided by the nose-piece cZ at the end ofthe cylinder, while the rod r? of the nipper-rod or tongs is placed inthe space q2, between the heads p2 and pawls Z3 and ma, (see Figs. 4,11, and 18,) so that the pawls Z3 and 'm3 are enabled to act upon theserrations or rings s3,

-erence to Fig. 3.

and as the slide Z2 movesV forward they slip over the serrations s3,-but as the slide Zimove's backward the pawls engage with the serrationssi and move backward the nipper-rod or tongs, thereby moving backward orfeeding out the nail-plate'f2 from the nose-piece cZ, to be acted uponby the cutters d and f, in a manner which will be readily understood byref- By making the pawls Z3 and m3 of unequal length, as shown, (seeFig. 18,) they give a smaller or finer graduated feeding action of thenipper-rod or tongs.

at is the ordinary stop-bar, with which nearly if not all cut-nailmachines are provided. This is technically called the nip` per-gage. Oneof its objects and'purposes is to govern the amount that the nail-plateis passed in between the cutters ZZ and f. The one shown and marked (Z4is substantially similar to those which are and have been long in use.Therefore it need not be further described.

The operation of my invention is as follows: The parts above mentionedhaving been constructed and arranged together as described and shown,and the moving parts put in motion in the ordinary manner, it will beseen that at each descent of the cutter d, held in the cutting-jaw c,the leverZ makes one complete vibration up or down. This causes, throughthe connecting-rod p', a vibration of the segmental lever Z. Eachvibration of the segmental lever z" causes a half-revolution of thecylinder c'. This is so timed that-when the segmental lever Z is ateither end of its vibration the nail-platef is fairly lying on thecutter f, as shown in Fig. 3. Therefore, when the segmental lever Z' isin a midway position of its vibrations, the cylinder c will hold theplate]c2 in a position at right angles to the cutter f. In this positionit is shown in Fig. 1. The vibrations of the segmental lever aretransmitted, through the connectingrod t', arm v', rock-shaft s, arm e2,and connecting-rod c2, to the frame a', causing it to rotate slightlyupon the pivot t, thereby providing for the necessary motion up and downto enable the cylinder c and plate f to be raised clear of the dief asthe cylinder and plate turn over; and not only to do this, but from therelative location of the pivot twith regard to the frame a it causes theframe a and all the parts attached thereon to swing bodily forward asmall amount as thecylinder c rises to the position shown in Fig. l, andswing bodily backward an equal amount as the cylinder-c descends to theposition shown in FigrS.

Before proceeding further with this description of the operation I wishhere to remark that it has been hereinbefore described, and, as shown inthe drawings, the front end of the cylinder c' is provided with beveledgear-teet-h e', extending around the whole of its circumference. It isnot necessary that the gear-teeth e' should extend the whole way roundthe circumference, because it is only necessary for the cylinder c to bemade to re- IOC IZO

1o f/ of the segmental rack h.

Returning now to the operations of the paris, while the abovedcscribedoperations of the frame a and its attachments are taking place,

the segment m', situated on the front end of the segmental lever Z, isbeing` vibrated up and down, causing the cam projection n', through theroller i and pin h, to operate the slide Z2, carried in the rest g,which it does in the following manner: When the cani projection a' is iucontact with the roller Z, the slide Z2 and pawls Z3 and m3 are movedforward or in the direction ofthe arrow marked 1 in Fig. 4. The amountthat the cam projection n presses forward the slide Z2 the spring iscompressed to allow this motion, and the spring d remains compressedduring the period occupied by the passing of the cam projection n',which, it will be observed, is ot' considerable length. As soon as thecam projection a has passed, as it does at the end of each vibration ofthe lever i', the force of the spring d causes the slide Z2 to moverearward or in the direction indicated by the arrows 2 in Figs. 3 and 5,thereby causing the pawls Z:i and m3 to move rearward the nipper-rod ortongs r2, and consequently pushing out the nail-plate f2, or, in otherwords7 feeding out the plate flfrom'the nose piece d. The cam projectionn is made to project slightly more than the amount required to give thenecessary feed required for the nail-plate f2. The backward travel ofthe slide Z2 is governed by the end of the nail-platef2 coming incontact with the stop -bar or nipper-gage at, thereby holding the rolleri at a short distance from the periphery of the segment m', the stop-baror nippecgage a* being enabled to do this because the feed motion issolely depending on the action of the spring (Z3. The part of thenipper-rod or tongs r2 placed between the projections a2 is held withsufficient force and friction by the heads p2 in the space q2, (sceFigs. 10 and 11,) to prevent the nipper-rod or tongs from being drawnforward by the forward movement of the pawls Z3 and m3, and to overcome,also, any tendency of displacement of the nipper-rod or tongs by themovements of the frame aand its attachments. The feeding of thenail-plate f2 takes place each time the nail-plate and nose-piece cZ ofthe cylinder c are brought to the position shown in Fig. 3w that is tosay, each time the nail-plate is laidfair on the cutter f, andpreceding, by an instant of time, the moment at which the cutter d willbe brought down upon it and sever a piece therefrom to form a nail.

With regard tothe cam projection a', in case it should be desirable incertain machines to {tongue-joinen?, so that should they be moved apartfor the purpose of increasing the length of the cam projection thecontinuous bearing for. the roller i to travel on (see Fig. 3) may notbe destroyed thereby.

I prefer to use the cam projection n in the manner hereinabovedescribed-that is to say in connection with the stop-bar or nippel'.gage a, which latter positively governs the feed of the nail-plate, andnot the motion of the slide Z2, actuating the nipper-rod or tongs r2;but as in case of certain classes of work it should be desired todispense with the stopbar or nipperlgage a* and feed by t-he motion ofthe slide Z, then I form the forward end of the segmental lever 17 asshown in Fig. 8 or 9.

In Fig. 9 a cam-link, bi, is formed, in which the roller Z travels inthe ordinary well-known manner; or, instead ofthecomplete link shown inFig. 9, a partial link, 11',1nay be formed, as shown in Fig. 8. In thiscase it will be readily understood that the nipper-rod or tongs r2 willbe moved to feed the nail-plate positively the amount of the camprojection n' for each piece cut of the nail-plate.

XVitli regard to the nipper-rod or tongs, it will be observed' that theserrations s are not carried close upto the collar t3, but that a blankspace, t", is left. This is for the purpose that when the feed of thenai1-plate has been carried far enough the pawls Z:i and m3 areprevented from feeding farther on account of thereV not being anyserrations for them'to act upon. The collar L3, also coming in contactwith the plate]U5 or any other projection arrangedl for that purpose,also prevents the feed of the nail-plate being carried too far.

Vhat I claim, and wish to secure by Letters Patent, is as follows:

l. In combination with a. nail-cutting ma.- chine, the swinging framea', partially-rotated cylinder c', segmental lever i', having seg-'mental rack 7L', segment m, and cam projection n', slide Z2, havingpawls Z3 and in, spring d3," and nipper-rod or tongs r, the wholesubstantially as described. Y

2. The combination, with a nail-cutting n1achine, of the vibrating leverl, operated by the nail-machine, as described, connecting-rod p',segmental lever il', connectingrod t', arm e', rock-shaft s, arm c2, andconnecting-rod c2, with t-he framea, having its pivot-point t 1ocated asdescribed, the whole substantially as described.

3. In combination with the slide Z2, operated as described, and havingpawlsZ3 and ma, the rest g2, having gripping and friction heads IlO p2,ni pper-rod or tongs r, having serrations s",

and jaws Q3, thewhole constructed andarthe jaws g3, rod rserrations s3,blank space t4, and collar t3, combined Wit-h the slide Z2, l

pawls Z3 and m3, and plate f3, operated as described, the wholesubstantially as set forth.

6. The combination of the segmental lever Z', operated as described,having segment m', cam projection fn, slide Z2, spring d3, pawls Z3 andm3, and nipper-rod or tongs r2, the whole substantially as described.

RANDOLPH HERSEY.

Witnesses:Y

CHARLES G. G. SIMPsoN, J. H. MOGREGOR.

